Terrorist organization Islamic State has claimed responsibility of the Christian trader killing in Natore, according to US-based SITE Intelligence Group.According to ‘Amaq agency’, a IS backed news agency reported that Islamic State has killed Christian trader of Natore.Police said quoting locals that, local people found Sunil Gomez, 65, son of Joshef Gomez of the upazila, dead inside of the grocery shop when they went to the shop to buy something.The marks of injuries were seen in his body.